更新された2023年07月15日検証済み！合格できるDatabricks-Certified-Data-Engineer-Associate試験一発合格保証付き
無料で使えるDatabricks-Certified-Data-Engineer-Associateサンプルには問題100%カバー率でリアル試験問題（更新された47問あります)
GAQM Databricks-Certified-Data-Engineer-Associateの試験は、Databricksを使用してデータパイプラインを構築および維持するスキルを持つ候補者の専門知識を認定する高く評価されている認定資格です。データエンジニアがこの認定資格を取得することにより、自身のキャリアを向上させ、組織がデータのフルポテンシャルを引き出すのを支援することができます。
Databricks Certified Data Engineer Associate 試験の準備には、学習ガイド、練習問題、トレーニングコースなど、さまざまなリソースを活用することができます。この試験はオンラインで実施され、世界中のどこからでも受けることができます。合格者は、デジタルバッジと証明書を受け取り、そのスキルと知識を潜在的な雇用主に示すことができます。
質問 # 16
A data analyst has created a Delta table sales that is used by the entire data analysis team. They want help from the data engineering team to implement a series of tests to ensure the data is clean. However, the data engineering team uses Python for its tests rather than SQL.
Which of the following commands could the data engineering team use to access sales in PySpark?
- A. spark.sql("sales")
- B. spark.delta.table("sales")
- C. There is no way to share data between PySpark and SQL.
- D. SELECT * FROM sales
- E. spark.table("sales")
正解：B
質問 # 17
A single Job runs two notebooks as two separate tasks. A data engineer has noticed that one of the notebooks is running slowly in the Job's current run. The data engineer asks a tech lead for help in identifying why this might be the case.
Which of the following approaches can the tech lead use to identify why the notebook is running slowly as part of the Job?
- A. There is no way to determine why a Job task is running slowly.
- B. They can navigate to the Runs tab in the Jobs UI and click on the active run to review the processing notebook.
- C. They can navigate to the Tasks tab in the Jobs UI to immediately review the processing notebook.
- D. They can navigate to the Runs tab in the Jobs UI to immediately review the processing notebook.
- E. They can navigate to the Tasks tab in the Jobs UI and click on the active run to review the processing notebook.
正解：B
質問 # 18
Which of the following describes a scenario in which a data team will want to utilize cluster pools?
- A. An automated report needs to be tested to identify errors.
- B. An automated report needs to be version-controlled across multiple collaborators.
- C. An automated report needs to be runnable by all stakeholders.
- D. An automated report needs to be made reproducible.
- E. An automated report needs to be refreshed as quickly as possible.
正解：C
質問 # 19
Which of the following benefits of using the Databricks Lakehouse Platform is provided by Delta Lake?
- A. The ability to support batch and streaming workloads
- B. The ability to distribute complex data operations
- C. The ability to set up alerts for query failures
- D. The ability to collaborate in real time on a single notebook
- E. The ability to manipulate the same data using a variety of languages
正解：A
質問 # 20
A data engineer has been using a Databricks SQL dashboard to monitor the cleanliness of the input data to an ELT job. The ELT job has its Databricks SQL query that returns the number of input records containing unexpected NULL values. The data engineer wants their entire team to be notified via a messaging webhook whenever this value reaches 100.
Which of the following approaches can the data engineer use to notify their entire team via a messaging webhook whenever the number of NULL values reaches 100?
- A. They can set up an Alert with a custom template.
- B. They can set up an Alert with a new webhook alert destination.
- C. They can set up an Alert with a new email alert destination.
- D. They can set up an Alert with one-time notifications.
- E. They can set up an Alert without notifications.
正解：B
質問 # 21
A new data engineering team has been assigned to work on a project. The team will need access to database customers in order to see what tables already exist. The team has its own group team.
Which of the following commands can be used to grant the necessary permission on the entire database to the new team?
- A. GRANT CREATE ON DATABASE team TO customers;
- B. GRANT USAGE ON DATABASE customers TO team;
- C. GRANT CREATE ON DATABASE customers TO team;
- D. GRANT VIEW ON CATALOG customers TO team;
- E. GRANT USAGE ON CATALOG team TO customers;
正解：B
質問 # 22
A new data engineering team team. has been assigned to an ELT project. The new data engineering team will need full privileges on the database customers to fully manage the project.
Which of the following commands can be used to grant full permissions on the database to the new data engineering team?
- A. GRANT SELECT CREATE MODIFY USAGE PRIVILEGES ON DATABASE customers TO team;
- B. GRANT USAGE ON DATABASE customers TO team;
- C. GRANT SELECT PRIVILEGES ON DATABASE customers TO teams;
- D. GRANT ALL PRIVILEGES ON DATABASE customers TO team;
- E. GRANT ALL PRIVILEGES ON DATABASE team TO customers;
正解：D
質問 # 23
A data engineer needs to create a table in Databricks using data from their organization's existing SQLite database.
They run the following command:
Which of the following lines of code fills in the above blank to successfully complete the task?
- A. org.apache.spark.sql.sqlite
- B. autoloader
- C. sqlite
- D. DELTA
- E. org.apache.spark.sql.jdbc
正解：A
質問 # 24
A data engineer wants to create a new table containing the names of customers that live in France.
They have written the following command:
A senior data engineer mentions that it is organization policy to include a table property indicating that the new table includes personally identifiable information (PII).
Which of the following lines of code fills in the above blank to successfully complete the task?
- A. TBLPROPERTIES PII
- B. PII
- C. "COMMENT PII"
- D. COMMENT "Contains PII"
- E. There is no way to indicate whether a table contains PII.
正解：A
質問 # 25
A dataset has been defined using Delta Live Tables and includes an expectations clause:
CONSTRAINT valid_timestamp EXPECT (timestamp > '2020-01-01') ON VIOLATION DROP ROW What is the expected behavior when a batch of data containing data that violates these constraints is processed?
- A. Records that violate the expectation are dropped from the target dataset and recorded as invalid in the event log.
- B. Records that violate the expectation are added to the target dataset and flagged as invalid in a field added to the target dataset.
- C. Records that violate the expectation are dropped from the target dataset and loaded into a quarantine table.
- D. Records that violate the expectation cause the job to fail.
- E. Records that violate the expectation are added to the target dataset and recorded as invalid in the event log.
正解：E
質問 # 26
Which of the following tools is used by Auto Loader process data incrementally?
- A. Checkpointing
- B. Data Explorer
- C. Unity Catalog
- D. Spark Structured Streaming
- E. Databricks SQL
正解：D
質問 # 27
A data engineer is attempting to drop a Spark SQL table my_table. The data engineer wants to delete all table metadata and data.
They run the following command:
DROP TABLE IF EXISTS my_table
While the object no longer appears when they run SHOW TABLES, the data files still exist.
Which of the following describes why the data files still exist and the metadata files were deleted?
- A. The table was managed
- B. The table did not have a location
- C. The table's data was smaller than 10 GB
- D. The table was external
- E. The table's data was larger than 10 GB
正解：D
質問 # 28
A data engineer needs to determine whether to use the built-in Databricks Notebooks versioning or version their project using Databricks Repos.
Which of the following is an advantage of using Databricks Repos over the Databricks Notebooks versioning?
- A. Databricks Repos is wholly housed within the Databricks Lakehouse Platform
- B. Databricks Repos automatically saves development progress
- C. Databricks Repos supports the use of multiple branches
- D. Databricks Repos allows users to revert to previous versions of a notebook
- E. Databricks Repos provides the ability to comment on specific changes
正解：C
質問 # 29
A Delta Live Table pipeline includes two datasets defined using STREAMING LIVE TABLE. Three datasets are defined against Delta Lake table sources using LIVE TABLE.
The table is configured to run in Production mode using the Continuous Pipeline Mode.
Assuming previously unprocessed data exists and all definitions are valid, what is the expected outcome after clicking Start to update the pipeline?
- A. All datasets will be updated once and the pipeline will shut down. The compute resources will persist to allow for additional testing.
- B. All datasets will be updated once and the pipeline will shut down. The compute resources will be terminated.
- C. All datasets will be updated at set intervals until the pipeline is shut down. The compute resources will be deployed for the update and terminated when the pipeline is stopped.
- D. All datasets will be updated at set intervals until the pipeline is shut down. The compute resources will persist to allow for additional testing.
- E. All datasets will be updated once and the pipeline will persist without any processing. The compute resources will persist but go unused.
正解：A
質問 # 30
A data engineer runs a statement every day to copy the previous day's sales into the table transactions. Each day's sales are in their own file in the location "/transactions/raw".
Today, the data engineer runs the following command to complete this task:
After running the command today, the data engineer notices that the number of records in table transactions has not changed.
Which of the following describes why the statement might not have copied any new records into the table?
- A. The format of the files to be copied were not included with the FORMAT_OPTIONS keyword.
- B. The previous day's file has already been copied into the table.
- C. The names of the files to be copied were not included with the FILES keyword.
- D. The PARQUET file format does not support COPY INTO.
- E. The COPY INTO statement requires the table to be refreshed to view the copied rows.
正解：B
質問 # 31
Which of the following describes the relationship between Gold tables and Silver tables?
- A. Gold tables are more likely to contain truthful data than Silver tables.
- B. Gold tables are more likely to contain valuable data than Silver tables.
- C. Gold tables are more likely to contain more data than Silver tables.
- D. Gold tables are more likely to contain aggregations than Silver tables.
- E. Gold tables are more likely to contain a less refined view of data than Silver tables.
正解：E
質問 # 32
A data engineer has three tables in a Delta Live Tables (DLT) pipeline. They have configured the pipeline to drop invalid records at each table. They notice that some data is being dropped due to quality concerns at some point in the DLT pipeline. They would like to determine at which table in their pipeline the data is being dropped.
Which of the following approaches can the data engineer take to identify the table that is dropping the records?
- A. They can navigate to the DLT pipeline page, click on each table, and view the data quality statistics.
- B. They can navigate to the DLT pipeline page, click on the "Error" button, and review the present errors.
- C. They can set up DLT to notify them via email when records are dropped.
- D. They cannot determine which table is dropping the records.
- E. They can set up separate expectations for each table when developing their DLT pipeline.
正解：B
質問 # 33
A data engineer has left the organization. The data team needs to transfer ownership of the data engineer's Delta tables to a new data engineer. The new data engineer is the lead engineer on the data team.
Assuming the original data engineer no longer has access, which of the following individuals must be the one to transfer ownership of the Delta tables in Data Explorer?
- A. This transfer is not possible
- B. Databricks account representative
- C. Original data engineer
- D. New lead data engineer
- E. Workspace administrator
正解：D
質問 # 34
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